• Q1: Why do you recommend using log washers in this solution?
  A: Our log washers are specifically designed for gemstone-bearing clay with three key advantages:
• Intensive Scrubbing: A special twin-shaft design with wear-resistant paddles delivers vigorous agitation.
• Clay Disintegration: Effectively breaks up even million-year-old compacted clay deposits.
• Gentle Processing: Ensures complete clay removal without damaging fragile gemstones.

Q2: What’s the purpose of the sluice box after screening?
A: The sluice box serves two critical functions:

• Recovers fine gold particles present in the <4 mm material
• Maximizes overall project economics by capturing all valuable minerals. This was specifically included per the client’s request to ensure no gold is wasted.

Q3: Why is a vibrating feeder essential in this setup?
A: The vibrating feeder provides three operational benefits:

• Controlled Feed Rate: Maintains optimal processing speed (200TPH)
• Equipment Protection: Prevents overloading of downstream machinery
• Process Stability: Ensures consistent material flow to washing systems. It’s particularly crucial for clay-rich materials that tend to clump.

Q4: What’s the advantage of using two log washers in series?
A: Our dual-log-washer system implements a proven two-stage approach:

Primary Washer:

• Breaks up compacted clay clusters
• Initial soaking to soften stubborn deposits

Secondary Washer:

• Precision cleaning of partially exposed gemstones
• Final quality scrubbing for market-ready products. This configuration is 40% more effective than single-washer systems for tenacious clay.

Q5: Are your machines certified for international standards?
A: Yes, all equipment in this package includes:

• CE certification (meeting European safety standards)
• ISO 9001:2015 certification (quality management system)
• Factory acceptance testing reports and certification documents will be provided with equipment delivery.

Q6: What are the costs if we need technical support on-site?
A: For an engineer dispatch to your mine site, the following costs apply:

1. Professional Fees: $150/day/engineer (minimum 2 engineers recommended)

2. Travel Costs:

• Round-trip airfare (economy class)
• Visa processing fees

3. On-Site Expenses:

• Local transportation
• Accommodation and meals
• Potential layover costs. Typical installation requires 4-8 weeks, depending on site preparation.

Q7: What are your standard payment terms?
A: Our flexible payment structure ensures low-risk collaboration:

• 40% Deposit: Required to initiate production
• 30% Progress Payment: Due at halfway completion (with photo verification)
• 30% Balance: Paid pre-shipment after final inspection. 

We accept T/T transfers and can discuss LC options for established clients.